package com.zb.filters;

import org.springframework.cloud.gateway.filter.GatewayFilterChain;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.core.Ordered;
import org.springframework.http.HttpStatus;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.http.server.reactive.ServerHttpResponse;
import org.springframework.stereotype.Component;
import org.springframework.web.server.ServerWebExchange;
import reactor.core.publisher.Mono;

@Component
public class PowerFilter implements GlobalFilter, Ordered {

    @Override
    public Mono<Void> filter(ServerWebExchange exchange, GatewayFilterChain chain) {
        ServerHttpRequest request = exchange.getRequest();
        ServerHttpResponse response = exchange.getResponse();
        String url = request.getURI().getPath().toString();
        System.out.println("===>" + url);
        if (url.startsWith("/api/myauth/login")) {
            System.out.println("=======>放行接口");
            return chain.filter(exchange);
        }
        String token = request.getHeaders().getFirst("token");
        if (token == null || "".equals(token)) {
            response.setStatusCode(HttpStatus.UNAUTHORIZED);
            return response.setComplete();
        }
        //将token数据包装成认证框架需要使用的方式
        request.mutate().header("Authorization", "Bearer " + token);
        return chain.filter(exchange);
    }

    @Override
    public int getOrder() {
        return 0;
    }
}
